From: Johan Hovold <johan@kernel.org>
Date: Tue, 3 Jan 2017 15:39:42 +0000 (+0100)
Subject: USB: serial: io_edgeport: fix NULL-deref at open
X-Git-Tag: v3.2.87~135
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e61a44f0aa01ae01121b68ce4e428f78b67027f0;p=pandora-kernel.git

USB: serial: io_edgeport: fix NULL-deref at open

commit 0dd408425eb21ddf26a692b3c8044c9e7d1a7948 upstream.

Fix NULL-pointer dereference when initialising URBs at open should a
non-EPIC device lack a bulk-in or interrupt-in endpoint.

Unable to handle kernel NULL pointer dereference at virtual address 00000028
...
PC is at edge_open+0x24c/0x3e8 [io_edgeport]

Note that the EPIC-device probe path has the required sanity checks so
this makes those checks partially redundant.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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